− Decrease quantity for Air/Fuel Ratio Gauge; Phantom II; Wideband Air Fuel Ratio Kit; 2 1/16 in.; Includes Bosch O2 Sensor; Analog; Quantity + Increase quantity for Air/Fuel Ratio Gauge; Phantom II; Wideband Air Fuel Ratio Kit; 2 1/16 in.; Includes Bosch O2 Sensor; Analog; Add to cart